Quintanilla had recently been placed on assignment by the Mets to make room for outfielder Jason Bay on the roster as Bay was returning from the disabled list. Bay returned from the concussion which had put him on the disabled list on Tuesday. Quintanilla was originally signed to a minor league contract by the Mets on Jan. 3. In 29 games with the Mets this season, Quintanilla hit .257 with one home run, eight walks and four RBI. In addition to shortstop, he also played some time at second base this season.